Raymond : Tuk Chazv Formation and its Fauna. 58!! 



". . . West and south of this point, through Central New York and 

 the tract west of the Adirondack region as far north as the 'Ihousand 

 Islands, the Chazy is altogether lacking. When it reappears to the 

 northward, along the Ottawa River and the vicinity of Montreal, it appar- 

 ently consists of the measures which first disappear to the south in the 

 Chaniplain Valley. They are described by Logan as whitish .sandstones in- 

 terstratified with bands of green shale, followed by beds ' composed almost 

 entirely of Kliynchouella plena ' and are supposed not to exceed 150 feet in 

 thickness. This answers well to the top and bottom of the Valcour Island 

 section. No beds containing Alaclurea viat;na are reported from Canada 

 to the west of the outlet of Lake Champlain. These facts could easily be 

 accounted for by supposing at the north an elevation of the sea bed during 

 the middle of the Chazy period, and at the south a simultaneous depression 

 and submergence. If in the intervening region the .submergence was con- 

 tinuous, we should have the whole formation and the maximum thickness at 

 the northern end of Lake Champlain.'" 

 1891. Jones, T. R. On some Ostracoda from the CambroSilurian, Silurian, and 

 r»evonian Rocks. Contributions to Canadian Micro-Paleontology, pt. 3. 



The following new species of Ostracoda from the Chazy formation of the 

 ( )ttawa Valley are described : 



Beyrichia clavigi-7-a, hocJiilina labellosa, 



Beyrichia clavi^era cla-'ifracta, Leperditia baltJtiia priiiKCva. 



Isochilina o'tawa i7iter7}udia, 



1893. Ami, H. M. On the Geology and Paleontology of the Rockland Quarries 



and Vicinity in the County of Russell, Ontario, Canada. Ottawa Naturalist, 

 Vol. 7, pp. 138-147. 



Describes the Chazy in the vicinity of Rockland. 



1894. Ami, H. ^L Lists of fossils. Appendix to Report J, Vol. 7, Geological 



Survey of Canada, pp. 1 13-156. 



Gives numerous lists of fossils from localities in the .Southwest sheet of 

 the "Eastern Townships" map. These lists are quoted in the preceding 

 pages. 



1894. ClsHlNG, H. P. Preliminary report on the Geology of Clinton County, 

 New York. 47th Annual Report New York State Museum, pp. 669-683. 



1894. Eli.s, R. \V. Report on a Portion of the Province of Quebec Comprised in 

 the Southwest Sheet of the " Eastern Townships" Map. CJeological Sur- 

 vey of Canada, Vol. 7, pp. 5-9. 



" In the Phillipsburg section there are no sandy or shaly beds at the base 

 of the Chazy. This may be accounted for on the assumption that a fault 

 has cut off the lower beds, of which there does not appear to be any clear 

 evidence, or that instead of littoral deposits as in the Ottawa Valley, the dep- 

 osition was for the most part in deep water and the sediments almost en- 

 tirely calcareous." . . . " The Chazy forms a syncline at Phillipsburg and 

 to the north it is a limestone, limestone conglomerate and slate, and is very 

 rich in fossils, more particularly in the northern portions of the belt about 



